WooHoo! I finally completed Phase 4 in Satisfactory! It was hard, really hard. I wouldn't have done it without a few mods and some blueprints from the Satisfactory Calculator website.
Highlights: a messed up train system forced me to start using drones, so now I have a little bit of every type of automated transport system. Fun fun.
What crazy stuff am I about to face on Phase 5?
Anyway I posted a quick video about it on YouTube, but don't watch it if you don't want spoilers!